Menu+l: To open a new url (in the same window), hold down Menu and click l.
Menu+t: To see all the open windows, click Menu+t.
Menu+b: To see your bookmarks, press Menu+b.
Menu+r: To refresh the webpage, press Menu+r.
Menu+w: Close the current window by pressing Menu+w.
Menu+space: To go to your home page, press Menu+space.
Menu+h: Press Menu+h to see your browsing history.